Group 1 - The U.S. Department of Homeland Security has suspended Harvard University's eligibility to enroll international students, effective immediately [2] - Harvard's Student and Exchange Visitor Program (SEVP) certification has been revoked, preventing the university from enrolling any foreign students with F or J visas for the 2025-2026 academic year [2] - Current international students holding F or J visas must transfer to other institutions to maintain their non-immigrant status [2] Group 2 - Harvard University has stated that the Department of Homeland Security's action is "illegal" and will strive to maintain its ability to enroll international students from over 140 countries [5] - The Secretary of Homeland Security has indicated that similar actions may be considered for other universities [3]